I'm actually moderately surprised they are not actively helping, as often having a second OS option allows for various fun legal tricks when importing, bidding on government contracts, etc.
Apple in contrast has helped Asahi Linux for literally no reason. It wasn't requiest, it wasn't even required. It just made life easier for Asahi Linux.
The change you're talking about is likely to have been for Asahi, but no statement from Apple so far about it.
> "Okay, it's been over a year, and it's time to end the nonsense speculation."
> "I have heard from several Apple employees that:"
> "1. The boot method we use is for 3rd-party OSes, and Apple only use it to test that it works, because"
> "2. It is policy that it works."
> "Hacker News peanut gallery, you can drop the BS now. It's not an "assumption" that this stuff exists for 3rd-party OSes. It couldn't "be something internal Apple uses that could go away any minute". That is not how it works, it never was, and now I'm telling you it's official."
> "And this isn't even news because @XenoKovah (who invented and designed this entire Boot Policy 3rd party OS mechanism) already tweeted about this whole thing a long time ago, but apparently it needs to be restated."
So no, we do know why this was made and no, Marcan hasn't made the claim that you have.